Install PHP memcache

download memcache source :

# wget http://pecl.php.net/get/memcache-2.1.2.tgz

extract

# tar -zxf memcache-2.1.2.tgz

# cd memcache-2.1.2/

# phpize

# ./configure --enable-memcache

# make && make install

add this line on php.ini :

extension=/path/shared_library/memcache.so

restart apache

check is memcache installed properly

sidiq:~ # php -i | grep memcache
memcache
memcache support => enabled
memcache.allow_failover => 1 => 1
memcache.chunk_size => 8192 => 8192
memcache.default_port => 11211 => 11211
memcache.max_failover_attempts => 20 => 20
Registered save handlers => files user sqlite memcache